I dont think he has any issue fighting in America but they had a date set for Sheffield in July. I think they're trying to build a fanbase here first (which he didn't really have before). Then hopefully get a big name to come here where it'll get US TV exposure, then come to the US off the back of that.

Its easy to say "come to the US" but harder to find someone to fight.

Sorry but I don't think any US big name will go to the UK to fight him. Maybe Malignnagi the road warrior but anyone else? Probably not.